Ultimately, the curved dorsal fin is still a mystery. Curved, or not, the orca's giant fin is a beacon to all, this apex predator is a force to reckon with. More from News A triangle pointing ...

The shark's tag, a sophisticated tracking device affixed to his dorsal fin, indicates his movements every time he surfaces, providing a rare and chilling glimpse into the habits of these ocean ...

According to researchers, Megalodon's dorsal fin was 1.62 meters high ... revealing that the giant shark had a greasy ...